<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        h1 {
            text-shadow: 5px 5px 5px red;
        }
        
        p {
            width: 100px;
            word-wrap: break-word;
        }
    </style>
</head>

<body>
    <h1>我是H1，我有阴影</h1>
    <p>This paragraph contains a very long word: thisisaveryveryveryveryveryverylongword. The long word will break and wrap to the next line</p>
</body>

</html>